Position in ARGX
as of Jun 30, 2026
· filed Aug 17, 2026
Position Value
$41,812,738
+$19,901,587 QoQ
Shares Held
45,068
+50.2% QoQ
Ownership
0.072%
of shares outstanding
% of Portfolio
0.47%
of 13F equity value
Holder Rank
#71
of 504 holders
Holding Since
Jun 2023
13 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ARGX Over Time
Shares Held
Position Value (USD)
Derivatives in ARGX
reported options exposure · as of Dec 31, 2025CallValue
$84,095
CallShares
100
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Biotechnology
Healthcare · as of Jun 30, 2026Jefferies Financial Group Inc. holds $677,219,224 across 66 Biotechnology names. ARGX ranks #6 (6.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PTCT |
Ptc Therapeutics, Inc.
|
1,357,042 | $110,693,915 | |
| 2 | URGN |
UroGen Pharma Ltd.
|
2,199,652 | $80,947,193 | |
| 3 | IMTX |
Immatics N.V.
|
6,506,802 | $65,913,904 | |
| 4 | TNGX |
Tango Therapeutics, Inc.
|
2,010,534 | $62,849,292 | |
| 5 | CGON |
CG Oncology, Inc.
|
769,947 | $54,704,734 | |
| 6 | ARGX |
Argenx SE
This page
|
45,068 | $41,812,738 | |
| 7 | RARE |
Ultragenyx Pharmaceutical Inc.
|
929,626 | $31,040,212 | |
| 8 | BMRN |
Biomarin Pharmaceutical Inc
|
466,258 | $26,679,282 |
All Filings in ARGX
Export CSV
31 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $41,812,738 | 45,068 | Shares | Defined | 2026-08-17 | |
| 2026-03-31 | $21,911,151 | 30,005 | Shares | Defined | 2026-05-08 | |
| 2025-12-31 | $25,228,500 | 30,000 | Shares | Defined | 2026-02-09 | |
| 2025-12-31 | $84,095 | 100 | Call | Defined | 2026-02-09 | |
| 2025-09-30 | $2,212,680 | 3,000 | Call | Defined | 2025-11-13 | |
| 2025-09-30 | $66,675,424 | 90,400 | Put | Defined | 2025-11-13 | |
| 2025-09-30 | $114,321,800 | 155,000 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $49,830,288 | 90,400 | Put | Defined | 2025-08-12 | |
| 2025-06-30 | $551,220 | 1,000 | Call | Defined | 2025-08-12 | |
| 2025-06-30 | $85,659,588 | 155,400 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $88,779,750 | 150,000 | Put | Defined | 2025-05-08 | |
| 2025-03-31 | $127,842,840 | 216,000 | Shares | Defined | 2025-05-08 | |
| 2024-12-31 | $92,250,000 | 150,000 | Put | Defined | 2025-02-27 | |
| 2024-12-31 | $132,687,480 | 215,752 | Shares | Defined | 2025-02-27 | |
| 2024-12-31 | $8,610,000 | 14,000 | Call | Defined | 2025-02-27 | |
| 2024-09-30 | $86,732,800 | 160,000 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $10,136,896 | 18,700 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $86,190,720 | 159,000 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $3,870,360 | 9,000 | Put | Defined | 2024-08-13 | |
| 2024-06-30 | $21,502 | 50 | Shares | Defined | 2024-08-13 | |
| 2024-06-30 | $8,041,748 | 18,700 | Call | Defined | 2024-08-13 | |
| 2024-03-31 | $53,191,178 | 135,099 | Shares | Defined | 2024-05-13 | |
| 2024-03-31 | $3,543,480 | 9,000 | Put | Defined | 2024-05-13 | |
| 2023-12-31 | $4,755,375 | 12,500 | Put | Defined | 2024-05-06 | |
| 2023-12-31 | $1,149,279 | 3,021 | Shares | Defined | 2024-05-06 | |
| 2023-12-31 | $913,032 | 2,400 | Call | Defined | 2024-05-06 | |
| 2023-09-30 | $983,260 | 2,000 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $2,507,313 | 5,100 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $2,455,299 | 6,300 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $506,649 | 1,300 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $292,297 | 750 | Shares | Defined | 2023-08-14 | |
| No filing history on record for this holder in this stock. | ||||||